A nichrome wire 1 m long and 1mm^2 in cr...

A nichrome wire 1 m long and `1mm^2` in cross-section area drawn 4A at 2 V. The resistivity of nichrome

`1.0 xx 10^-7 Omega m`

`2.0 xx 10^-7 Omega m`

`4.0 xx 106-7 Omega m`

`5.0 xx 10^-7 Omega m`

Text Solution

Verified by Experts

Topper's Solved these Questions

TEXTUAL QUESTIONS
MODERN PUBLICATION|Exercise EXERCISE|507 Videos
STRUCTURE OF NUCLEUS
MODERN PUBLICATION|Exercise EXERCISE|47 Videos
TEXUAL QUESTIONS
MODERN PUBLICATION|Exercise EXERCISE|195 Videos

Similar Questions

Explore conceptually related problems

Find the resistance of a nichrome wire of length 1m and area of cross-section 2mm^(2) .The resistivity of nichrome of nichrome is 100xx10^(-6)Ohm-m .

Calculate the electric field in a copper wire of cross-sectional area 2.0 mm^2 carrying a current of 1 A. The conductivity of copper = 6.25 xx 10^7 S m^-1

Find the resistance of a nichrome wire of length 1m and area of cross-section 4mm^(2) . rho(nichrome)= 100xx10^(-6)Ohm-m .

Find the resistance of a copper wire of length 1m and area of cross-section 2mm ^(2) .The specific resistance of copper= 1.7xx10^(-8)Ohm-m .

The copper wires of elngths and cross-sectional areas are (l,A), (2l,A/2) and (l/2, 2A). Resistance is minimum in

A cylinder of a material is 10 cm long and has a cross section of 2 cm^2 . If its resistance along the length be 20 ohm, what will be its resistivity in number and units?

Find the resistance of a nichrome wire of length 2m and area of cross-section 2mm^(2) rho_(nichrome)=100xx10^-6Ohm-m .

Two wires of the same metal have the same length, but their cross-sections are in the ratio of 3:1. They are joined in series. The resistance of the thicker wire is 10 Omega . The total resistance of the combinations will be

A steel wire of length 4.7 m and cross-sectional area 3.0 xx 10^-5 m^2 stretches by the same amount as a copper wire of length 3.5 m and cross-sectional area of 4.0 xx 10^-5 M^2 under a given load. What is the ratio of the Young’s modulus of steel to that of copper?

MODERN PUBLICATION-TEXTUAL QUESTIONS-EXERCISE

A solenoid is at potential difference of 60 V. current flowing through...
Text Solution
|
The resistance of a discharge tube is
Text Solution
|
A nichrome wire 1 m long and 1mm^2 in cross-section area drawn 4A at 2...
Text Solution
|
Reciprocal of resistance is called conductance.(True/False)
Text Solution
|
Which of the following physical quantities possesses the dimensions of...
Text Solution
|
The filament of electric bulb is made of .............. .
Text Solution
|
The length of a wire is doubled. Its conductance will
Text Solution
|
The length of a wire is doubled by pulling it.Find the new resistance.
Text Solution
|
Which of the following has negative temperature coefficient of resista...
Text Solution
|
Which of the following has a negative temperature coefficient?
Text Solution
|
A wire has a resistance of 3.1 Omega at 30^@C and a resistance of 4....
Text Solution
|
A wire has a resistance of 3.1Omega at 30^@C and a resistance of 4.5Om...
Text Solution
|
Three bulbs of electric powers 40 W, 60 W and 100 W are connected in s...
Text Solution
|
A 30 V . 90 W lamp is to be operated on a 120 V d.e. line for proper g...
Text Solution
|
If a power of 100 W is being supplied across a potential difference of...
Text Solution
|
A 10Omega electric heater operates on a 110 V line. The rate at which ...
Text Solution
|
On 220 V supply, a heater heats a volume of water in 5 minutes time. O...
Text Solution
|
Two heater coils separately take 10 minutes and 5 minutes to boil a ce...
Text Solution
|
Five equal resistors, when connected in seires, dissipated 5 W power, ...
Text Solution
|
If a wire of resistance 20 Omega is overed with ice and a voltage of 2...
Text Solution
|